BridgeJS: allow exported APIs to use imported @JSClass types #1958

Job	Run time
check-bridgejs-generated	2m 49s
Build and Test (ubuntu-24.04, https://download.swift.org/swift-6.3-branch/ubuntu2404/swift-6.3-DE...	2m 42s
Build and Test (ubuntu-24.04, https://download.swift.org/development/ubuntu2404/swift-DEVELOPMENT...	2m 42s
build-examples	40m 13s
format	39s
Build and Test (ubuntu-22.04, https://download.swift.org/swift-6.1-release/ubuntu2204/swift-6.1-R...	2m 27s
Build for native target (macos-15, Xcode_16.4)	2m 51s
Build and Test (ubuntu-22.04, https://download.swift.org/development/ubuntu2204/swift-DEVELOPMENT...	2m 43s
deploy-examples	0s
	57m 6s

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